74CB3Q3306 Series
3.3-V, 1:1 (SPST), 2-channel FET bus switch (active low)
Manufacturer: Texas Instruments
Catalog(5 parts)
| Part | Mounting Type | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Independent Circuits▲▼ | Type | Supplier Device Package | Operating Temperature▲▼ | Operating Temperature▲▼ | Package / Case | Circuit | Voltage Supply Source | Package / Case▲▼ | Package / Case▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Surface Mount | 3.5999999046325684 V | 2.299999952316284 V | 2 ul | Bus Switch | 8-TSSOP | -40 °C | 85 °C | 8-TSSOP (0.173", 4.40mm Width) | 1 x 1:1 | Single Supply | |||
Surface Mount | 3.5999999046325684 V | 2.299999952316284 V | 2 ul | Bus Switch | 8-TSSOP | -40 °C | 85 °C | 8-TSSOP (0.173", 4.40mm Width) | 1 x 1:1 | Single Supply | |||
Surface Mount | 3.5999999046325684 V | 2.299999952316284 V | 2 ul | Bus Switch | -40 °C | 85 °C | 8-VFSOP | 1 x 1:1 | Single Supply | 0.002311399905011058 m | 0.002300000051036477 m | ||
Surface Mount | 3.5999999046325684 V | 2.299999952316284 V | 2 ul | Bus Switch | 8-TSSOP | -40 °C | 85 °C | 8-TSSOP (0.173", 4.40mm Width) | 1 x 1:1 | Single Supply | |||
Surface Mount | 3.5999999046325684 V | 2.299999952316284 V | 2 ul | Bus Switch | -40 °C | 85 °C | 8-VFSOP | 1 x 1:1 | Single Supply | 0.002311399905011058 m | 0.002300000051036477 m |
Key Features
• High-Bandwidth Data Path (up to 500 MHz(1))5-V-Tolerant I/Os With Device Powered Up or Powered DownLow and Flat ON-State Resistance (ron) Characteristics OverOperating Range (ron= 4 Ω Typ)Rail-to-Rail Switching on Data I/O Ports0- to 5-V Switching With 3.3-V VCC0- to 3.3-V Switching With 2.5-V VCCBidirectional Data Flow With Near-Zero Propagation DelayLow Input/Output Capacitance Minimizes Loading and Signal Distortion(Cio(OFF)= 3.5 pF Typ)Fast Switching Frequency (fOE= 20 MHz Max)Data and Control Inputs Provide Undershoot Clamp DiodesLow Power Consumption (ICC= 0.25 mA Typ)VCCOperating Range From 2.3 V to 3.6 VData I/Os Support 0- to 5-V Signaling Levels(0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)Control Inputs Can Be Driven by TTL or 5-V/3.3-V CMOS OutputsIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Performance Tested Per JESD 222000-V Human-Body Model (A114-B, Class II)1000-V Charged-Device Model (C101)Supports Both Digital and Analog Applications: USB Interface, Differential SignalInterface, Bus Isolation, Low-Distortion Signal Gating(1)For additional information regarding the performance characteristics of the CB3Q family, refer to the TI application report, CBT-C, CB3T, and CB3Q Signal-Switch Families, literature number SCDA008.High-Bandwidth Data Path (up to 500 MHz(1))5-V-Tolerant I/Os With Device Powered Up or Powered DownLow and Flat ON-State Resistance (ron) Characteristics OverOperating Range (ron= 4 Ω Typ)Rail-to-Rail Switching on Data I/O Ports0- to 5-V Switching With 3.3-V VCC0- to 3.3-V Switching With 2.5-V VCCBidirectional Data Flow With Near-Zero Propagation DelayLow Input/Output Capacitance Minimizes Loading and Signal Distortion(Cio(OFF)= 3.5 pF Typ)Fast Switching Frequency (fOE= 20 MHz Max)Data and Control Inputs Provide Undershoot Clamp DiodesLow Power Consumption (ICC= 0.25 mA Typ)VCCOperating Range From 2.3 V to 3.6 VData I/Os Support 0- to 5-V Signaling Levels(0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)Control Inputs Can Be Driven by TTL or 5-V/3.3-V CMOS OutputsIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Performance Tested Per JESD 222000-V Human-Body Model (A114-B, Class II)1000-V Charged-Device Model (C101)Supports Both Digital and Analog Applications: USB Interface, Differential SignalInterface, Bus Isolation, Low-Distortion Signal Gating(1)For additional information regarding the performance characteristics of the CB3Q family, refer to the TI application report, CBT-C, CB3T, and CB3Q Signal-Switch Families, literature number SCDA008.
Description
AI
The SN74CB3Q3306A is a high-bandwidth FET bus switch utilizing a charge pump to elevate the gate voltage of the pass transistor, providing a low and flat ON-state resistance (ron). The low and flat ON-state resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output (I/O) ports. The device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Specifically designed to support high-bandwidth applications, the SN74CB3Q3306A provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems.
The SN74CB3Q3306A is organized as two 1-bit switches with separate output-enable (1OE, 2OE) inputs. It can be used as two 1-bit bus switches or as one 2-bit bus switch. WhenOEis low, the associated 1-bit bus switch is ON and the A port is connected to the B port, allowing bidirectional data flow between ports. WhenOEis high, the associated 1-bit bus switch is OFF, and a high-impedance state exists between the A and B ports.
This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry prevents damaging current backflow through the device when it is powered down. The device has isolation during power off.
To ensure the high-impedance state during power up or power down,OEshould be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN74CB3Q3306A is a high-bandwidth FET bus switch utilizing a charge pump to elevate the gate voltage of the pass transistor, providing a low and flat ON-state resistance (ron). The low and flat ON-state resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output (I/O) ports. The device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Specifically designed to support high-bandwidth applications, the SN74CB3Q3306A provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems.
The SN74CB3Q3306A is organized as two 1-bit switches with separate output-enable (1OE, 2OE) inputs. It can be used as two 1-bit bus switches or as one 2-bit bus switch. WhenOEis low, the associated 1-bit bus switch is ON and the A port is connected to the B port, allowing bidirectional data flow between ports. WhenOEis high, the associated 1-bit bus switch is OFF, and a high-impedance state exists between the A and B ports.
This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry prevents damaging current backflow through the device when it is powered down. The device has isolation during power off.
To ensure the high-impedance state during power up or power down,OEshould be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.